HD 27894 is 143 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this K2 V star; the first was found in 2005 by radial velocity (La Silla Observatory).
Fly there in 3DHD 27894 b goes round its star every 18.0 days, 5 times as often as Mercury goes round the Sun.
| Spectral type | K2 V |
| Surface temperature | 4,875 K |
| Mass | 0.81 solar masses |
| Radius | 0.891767 solar radii |
| Luminosity | 0.3556 times the Sun |
| Apparent magnitude | 9.36 |
| Age | about 3.9 billion years |
| Distance from the Sun | 142.9 light-years (43.8 parsecs) |
| Position (J2000) | RA 65.1976°, Dec -59.4097° |
| Constellation | Reticulum |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 27894 b | 18.0 days | 0.125 AU | 14.1 R⊕ estimated | 196.74 M⊕ minimum | Radial Velocity, 2005 |
| HD 27894 c | 36.1 days | 0.198 AU | 8.24 R⊕ estimated | 51.488 M⊕ minimum | Radial Velocity, 2017 |
| HD 27894 d | 13.7 years | 5.362 AU | 12.7 R⊕ estimated | 2063.7 M⊕ | Radial Velocity, 2017 |
Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.
For a star of 4,875 K, 0.36 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.60 to 1.08 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.
The light you see left 143 years ago, around 1880.